Drill Pipe Flange Connection for Rapid Setup and Tensile Transfer
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Solution Overview
Problem
Current drilling technologies face challenges in reducing setup times and efficiently transferring tensile forces during the installation and removal of drill pipes, especially for long lengths and larger diameters, which increases costs and complexity in laying underground cables and pipelines near the surface.
Innovation Solution
The drill pipe design features a flange connection with bolt attachments and a recess that can be closed with a cover, allowing for easy tensile connections and reduced setup times, along with internal lines for fluid and cable transport using a plug-in sleeve system, enabling efficient movement and force transfer through a press frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional screw thread connections are used to connect drill pipes, then the connection can transmit both tensile and compressive forces, but the setup time increases significantly due to the need to screw the connections together
Solution Approach 1:
The connection system is segmented into separate components: a flange connection for quick assembly and a screw thread connection for force transmission. This allows the quick connection aspect to be separated from the force transmission aspect, enabling faster setup while maintaining structural integrity
Solution Approach 2:
The flange connection with pre-positioned holes and recesses is designed to be assembled first in a single operation, establishing the basic connection before any screw threads need to be engaged. This preliminary action reduces the overall setup time by eliminating the need to screw connections together from scratch
2Loss of time
If drill pipes are connected via flange connections with holes and recesses, then the setup time is reduced, but the ability to transfer tensile forces efficiently is compromised
Solution Approach 1:
The invention merges two connection mechanisms into a single integrated system: the flange connection provides quick assembly through its holes and recesses, while the screw thread connection provides efficient tensile force transfer. Both mechanisms work together in the same connection interface to achieve both fast setup and strong force transmission
Solution Approach 2:
The flange structure acts as an intermediary between the quick connection requirement and the force transfer requirement. It provides a rigid framework that facilitates both the rapid assembly through holes and recesses and the subsequent engagement of screw threads for force transmission
3Productivity
If the recess in the outer wall is left open, then the setup process is simpler and faster, but stones and other objects can become stuck in the recess during movement in the borehole
Solution Approach 1:
The cover is designed to be movable, allowing it to be opened during the setup process for easy access to the recess and closed during operation to prevent objects from becoming stuck. This dynamic design allows the system to adapt to different operational phases, maintaining both setup speed and operation reliability
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 2c~2d
AI summary
The invention relates to a drill pipe for use during the creation of a borehole in a ground from a starting point to a target point along a predetermined drill line, in particular for the near-surface laying of underground cables or electric underground cables in the ground. The invention is characterized in that the borehole is gradually created by means of a drilling device that has a drilling tool for loosening the ground when the drill pipes are advanced, each end of the drill pipe having at least one connection section for detachably connecting it to a further element of a drill string in a tensile resistant manner; in that the drill pipe has at least one element for producing a tensile-resistant connection to a corresponding element of an advance device for advancing the drill pipe into and/or retracting it from the borehole; and in that an outer wall of the drill pipe is made in one piece. The invention further relates to a device for moving at least one drill pipe into a borehole or out of the same, and to a system and a corresponding method.